I'm Tihomir Erceg from Rascane (not Bascane), Dalmatia, Croatia (Croatia was part of former Yugoslavia). Ercegs are from Dalmatia. You can find Ercegs in Vrgorac, Rascane, and in vicinity of Split, Sinj, and Sibenik. As far as I know all other Ercegs all ower the the world are their descendants. Can you be more specific about your ancestors?